000			00457nam a2200157 4500
999			_c726 _d726
008			191122b ||||| |||| 00| 0 eng d
082	0	0	_a621.834 _bC7272
100			_9251 _aColvin, Fred H.
245	1	0	_aGear Cutting Practice: Methods of Producing Gears for Commercial Use _cby Fred H Colvin
250			_a3rd ed.
260			_aNew York _bMcGrawhill _c1950
300			_axii, 532 p.
650		0	_aGearing
700			_9253 _aStanley, Frank A.
942			_2ddc _cBK